Cited by 39Estrogen and related hormone effectsUbiquitin and proteasome pathwaysBreast Cancer Treatment Studies

The ubiquitin ligase RNF181 stabilizes ERα and modulates breast cancer progression

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Zhu, Jian, Li, Xin, Su, Peng, Xue, Min, Zang, Yifeng, Ding, Yinlu·2020·Oncogene

Abstract

ERα positive breast cancer accounts for 70% of breast malignancies. Compared with ERα negative types, ERα positive breast cancer could be effective controlled by endocrine therapy. However, more than half of the patients will develop endocrine resistance, making it an important clinical issue for breast cancer therapy. Endocrine resistance might be caused by multiple alternations, including the components of ERα signaling, during tumor progression. Thus, it is urgent and necessary to uncover the molecular mechanisms that controls ERα expression and stability to improve breast cancer therapeutics. In our current study, we identifies that the ubiquitin ligase RNF181 stabilizes ERα and facilitates breast cancer progression. The expression of RNF181 is correlated with ERα level in human breast tumors and relates to poor survival in endocrine-treated patients. RNF181 depletion inhibits breast cancer progression in vivo and in vitro, reduces ERα protein level and its target gene expression, such as PS2 and GREB1. Unbiased RNA sequencing analysis indicates RNF181 is necessary for ERα signature gene expression in whole genomic level. Immuno-precipitation assays indicate that RNF181 associates with ERα and promotes its stability possibly via inducing ERα K63-linked poly-ubiquitination. In conclusion, our data implicate a non-genomic mechanism by RNF181 via stabilizing ERα protein controls ERα target gene expression linked to breast cancer progression.

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Authors
Zhu, J., Li, X., Su, P., Xue, M., Zang, Y., & Ding, Y.
Affiliations
  • Shandong University (CN)
  • Henan Medical University (CN)
Corresponding author
  • Zhu, Jian
  • Ding, Yinlu
Venue
Oncogene
Published
2020-09-24
Volume
39
Issue
44
Pages
6776-6788
ISSN
  • 0950-9232 (ISSN-L)
  • 1476-5594
OpenAlex
W3089312151
Cited by
39
References
35
Citations by year
2026: 4 · 2025: 6 · 2024: 5 · 2023: 9 · 2022: 14 · 2021: 1
FWCI
3.52
Type
journal article
Language
en
Open access
Locations
  • Oncogene (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Shandong University
  • National Natural Science Foundation of China
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Breast Cancer Treatment Studies
Keywords
estrogen receptor alpha, protein stability, ubiquitin ligase, breast cancer progression, endocrine therapy resistance, K63-linked ubiquitination, pS2, GREB1, endocrine therapy
MeSH terms
Protein Domains, Progression-Free Survival, Animals, Breast, Breast Neoplasms, Female, Humans, Signal Transduction, Gene Expression Regulation, Neoplastic, Sequence Analysis, RNA, Disease Progression, Antineoplastic Agents, Hormonal, Drug Resistance, Neoplasm, Gene Expression Profiling, Xenograft Model Antitumor Assays, Ubiquitin-Protein Ligases, Estrogen Receptor alpha, Mice, Ubiquitination, Protein Stability, Gene Knockdown Techniques, HEK293 Cells, MCF-7 Cells, Datasets as Topic

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